Gene, as Ryan said, just go with the LPCM when available. One thing though, in DVDAE you can get song information from the freedb database by clicking the Get to download or upload metadata icon, next to the browse folder.
Saves a lot of time guessing which one to take. And especially with these YES and XTC bd-a's, a kind soul already provided all the info on the various mixes. :worthy
Don't know who did this, perhaps Neil Wilkes himself. Anyway the info is very accurate.
Oh wow! Excellent to know that. Thanks my good man.